is the process of obtaining the original message (called the plaintext) from an encrypted message (called the ciphertext)

is the process of converting the ciphertext message back into plaintext so that it can be readily understood.

What year did RSA Algorithm developed public cipher?

Substitute one value for another, for example a letter in the alphabet with the letter three values to the right.

This can be done at the bit level or at the byte (character) level.

Also known as the one-time pad, which was developed by AT&T, uses a set of characters only one time for each encryption process.

Are mathematical algorithms that generate a message summary or digest (sometimes called a fingerprint) to confirm the identity of a specific message and to confirm that there have not been any changes to the content.

It was developed by IBM and is based on the company’s Lucifer algorithm, which uses a key length of 128 bits.

is called private key encryption

Systems are based on public-key cryptosystems and include digital certificates and certificate authorities (CAs).

Which issues, manages, authenticates, signs, and revokes users’ digital certificates, which typically contain the user name, public key, and other identifying information.

Encrypted messages that can be mathematically proven authentic. Asymmetric encryption processes are used to create digital signatures.

Technically not a form of cryptography, it is another way of protecting the confidentiality of information in transit

     AES supports key lengths up to 128 bits, but is not compatible with older hardware.

Is a de facto industry standard for short-range wireless communications between devices.

Are a collection of brute-force methods that attempt to deduce statistical relationships between the structure of the unknown key and the ciphertext generated by the cryptosystem.

Attempts to intercept a public key or even to insert a known key structure in place of the requested public key

Asymmetric Encryption

uses two different but related keys, and either key can be used to encrypt or decrypt the message.

A network-based IDPS (NIDPS) resides on a storage device only which is connected to a segment of an organization’s network and monitors network traffic on that network segment, looking for indications of ongoing or successful attacks.